# -*- coding: utf-8 -*-
import matplotlib.pyplot as plt
from random_walk import RandomWalk

# 使用while循环，不断地模拟随机漫步
while True:
    # 创建一个RandomWalk实例，默认有5000个点
    rw = RandomWalk(50000)
    # 随机漫步
    rw.fill_walk()
    # 调整尺寸适应屏幕
    plt.figure(figsize=(10, 6))
    #
    point_numbers = list(range(rw.number_points))
    # 绘制
    plt.scatter(rw.x_values, rw.y_values, c=point_numbers, cmap=plt.cm.Blues,
                edgecolors='none', s=1)
    # 将起点和重点着重描述
    plt.scatter(0, 0, c='green', edgecolors='none', s=100)
    plt.scatter(rw.x_values[-1], rw.y_values[-1], c='red', edgecolors='none', s=100)
    # 隐藏坐标轴
    plt.axes().get_xaxis().set_visible(False)
    plt.axes().get_yaxis().set_visible(False)

    plt.show()
    keep_running = input("Make another walk? (y/n):")
    if keep_running == 'n':
        break
